linux-stable.git/Documentation, branch v3.12.20

media: media: gspca: sn9c20x: add ID for Genius Look 1320 V2

2014-05-15T07:55:30+00:00

commit 61f0319193c44adbbada920162d880b1fdb3aeb3 upstream.

Signed-off-by: Wolfram Sang 
Signed-off-by: Hans de Goede 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Jiri Slaby

spi: efm32: use $vendor,$device scheme for compatible string

2014-05-15T07:54:49+00:00

commit 12f6dd860cf8bf036c0bec38c00a53da71bcd43a upstream.

Wolfram Sang pointed out that "efm32,$device" is non-standard. So use the
common scheme and prefix device with "efm32-". The old compatible string
is left in place until arch/arm/boot/dts/efm32* is fixed.

Signed-off-by: Uwe Kleine-König 
Acked-by: Wolfram Sang 
Signed-off-by: Mark Brown 
Signed-off-by: Jiri Slaby

i2c: i801: enable Intel BayTrail SMBUS

2014-05-05T09:26:00+00:00

commit 1b31e9b76ef8c62291e698dfdb973499986a7f68 upstream.

Add Device ID of Intel BayTrail SMBus Controller.

Signed-off-by: Chew, Kean ho 
Signed-off-by: Chew, Chiau Ee 
Reviewed-by: Jean Delvare 
Signed-off-by: Wolfram Sang 
Signed-off-by: Jiri Slaby

net: micrel : ks8851-ml: add vdd-supply support

2014-04-18T09:07:10+00:00

[ Upstream commit ebf4ad955d3e26d4d2a33709624fc7b5b9d3b969 ]

Few platforms use external regulator to keep the ethernet MAC supplied.
So, request and enable the regulator for driver functionality.

Fixes: 66fda75f47dc (regulator: core: Replace direct ops->disable usage)
Reported-by: Russell King 
Suggested-by: Markus Pargmann 
Signed-off-by: Nishanth Menon 
Signed-off-by: David S. Miller 
Signed-off-by: Jiri Slaby

i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH

2014-04-01T20:12:08+00:00

commit afc659241258b40b683998ec801d25d276529f43 upstream.

This patch adds the SMBus Device IDs for the Intel Wildcat Point-LP PCH.

Signed-off-by: James Ralston 
Signed-off-by: Wolfram Sang 
Signed-off-by: Jiri Slaby

mm, oom: base root bonus on current usage

2014-02-13T21:50:19+00:00

commit 778c14affaf94a9e4953179d3e13a544ccce7707 upstream.

A 3% of system memory bonus is sometimes too excessive in comparison to
other processes.

With commit a63d83f427fb ("oom: badness heuristic rewrite"), the OOM
killer tries to avoid killing privileged tasks by subtracting 3% of
overall memory (system or cgroup) from their per-task consumption.  But
as a result, all root tasks that consume less than 3% of overall memory
are considered equal, and so it only takes 33+ privileged tasks pushing
the system out of memory for the OOM killer to do something stupid and
kill dhclient or other root-owned processes.  For example, on a 32G
machine it can't tell the difference between the 1M agetty and the 10G
fork bomb member.

The changelog describes this 3% boost as the equivalent to the global
overcommit limit being 3% higher for privileged tasks, but this is not
the same as discounting 3% of overall memory from _every privileged task
individually_ during OOM selection.

Replace the 3% of system memory bonus with a 3% of current memory usage
bonus.

By giving root tasks a bonus that is proportional to their actual size,
they remain comparable even when relatively small.  In the example
above, the OOM killer will discount the 1M agetty's 256 badness points
down to 179, and the 10G fork bomb's 262144 points down to 183500 points
and make the right choice, instead of discounting both to 0 and killing
agetty because it's first in the task list.

Signed-off-by: David Rientjes 
Reported-by: Johannes Weiner 
Acked-by: Johannes Weiner 
Cc: Michal Hocko 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

i2c: piix4: Add support for AMD ML and CZ SMBus changes

2014-02-06T19:22:20+00:00

commit 032f708bc4f6da868ec49dac48ddf3670d8035d3 upstream.

The locations of SMBus register base address and enablement bit are changed
from AMD ML, which need this patch to be supported.

Signed-off-by: Shane Huang 
Reviewed-by: Jean Delvare 
Signed-off-by: Wolfram Sang 
Signed-off-by: Greg Kroah-Hartman

i2c: mv64xxx: Document the newly introduced Armada XP A0 compatible

2014-02-06T19:22:19+00:00

commit f8b94beb7e6a374cb0de531b72377c49857b35ca upstream.

The first variants of Armada XP SoCs (A0 stepping) have issues related
to the i2c controller which prevent to use the offload mechanism and
lead to a kernel hang during boot.

The commit introduces a new the compatible string
marvell,mv78230-a0-i2c for the i2c controller.

Signed-off-by: Gregory CLEMENT 
Acked-by: Arnd Bergmann 
cc: devicetree@vger.kernel.org
Fixes: 930ab3d403ae (i2c: mv64xxx: Add I2C Transaction Generator support)
Signed-off-by: Jason Cooper 
Signed-off-by: Greg Kroah-Hartman

ata: sata_mv: introduce compatible string "marvell, armada-370-sata"

2014-02-06T19:22:19+00:00

commit b1f5c73bd5a4752efb7d7af019034044b08aafe9 upstream.

The sata_mv driver supports the SATA IP found in several Marvell SoCs.
As some new SATA registers have been introduced with the Armada 370/XP
SoCs, a way to identify them is needed.

This patch introduces a new compatible string for the SATA IP found in
Armada 370/XP SoCs.

Signed-off-by: Simon Guinot 
Cc: Thomas Petazzoni 
Cc: Jason Cooper 
Cc: Andrew Lunn 
Cc: Gregory Clement 
Cc: Sebastian Hesselbarth 
Cc: Lior Amsalem 
Acked-by: Jason Cooper 
Signed-off-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman

clk: samsung: exynos5250: Add MDMA0 clocks

2014-01-15T23:31:42+00:00

commit 8fb9aeb7a71ef4f3e0613d459a2e1366a7a90469 upstream.

Adds gate clock for MDMA0 on Exynos5250 SoC. This is needed to ensure
that the clock is enabled when MDMA0 is used on systems on which
firmware gates the clockby default.

Signed-off-by: Abhilash Kesavan 
Acked-by: Mike Turquette 
[t.figa: Updated patch description.]
Signed-off-by: Tomasz Figa 
Signed-off-by: Greg Kroah-Hartman